Improvement in thill-couplings



J. M. DUSENBERRY.

THILL COUPLING.

No.'18 1,56Z. Patented Aug. 29,1875.

N-FETERS, FHOTO-UTHOGRAPHER, WASHINGTON, D C

UNITED STATES PATENT OFFICE.

JAMES M. DUSENBERRY, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN THILL-C OUPLINGS.

Specification forming part of Letters Patent No. 18 1,562, dated August29, 1876; application filed May 28, 1875.

To all whom it may concern Be it known that I, JAMES M. DUSENBERRY,

' of Chicago, Cookcounty, Illinois, have invented a new and usefulImprovement in Thill-Oouplings for Carriages, &c., which is madesubstantially as set forth hereinafter, referring to the drawingsaccompanying this, in which Figure I is a vertical section of theapparatus; and Fig. II, a plan view of same.

This invention relates to a detachable thillcoupling for carriages,buggies, &c. The thill end A is inserted in a holder, E, in the usualway, fitting closely between the side jaws F, but turning loosely in avertical plane. held by the bolt H passing through the jaws and thills,shown by dotted lines in Fig. IL This bolt H fits in the thill A soclosely that it'cannot play loosely thereon, and, by preference, so thatit cannot turn thereon to wear loose. The bearings in the jaws F arecountersunk from the outsides, and the bolt H has heads riveted up inthem to hold it in place. When they wear loose in their bearings theyare made tight and snug by light additional riveting. The heads are leftslightly projecting for this purpose, and when the bolt must be removedin repairing, one head can be out so as to drive through. The part Kfits on the axle L in the usual way, and it is connected to part M belowthe axle by projections I at.

its four corners, passing down through and held by screw-nuts below. Thepart M has shoulders N against the two sides of the axle It is.

to help hold solidly, and has a passage cut back through its centerunder the axle for the This arrangement enables the thills to beconnected and disconnected with great ease and quickness for removingand for exchan g ing the single pole and shafts, 860., and without thedifficulcies of the usual connections. It makes a neater connection thanwhere the connecting bolt has ,large head and nut projecting to catchmud, 850., and makes a tight joint without the necessity for rubbersprings therein, though they might be used.

I claim- The combination of the clip K, the bottom part M, theprojection T from the coupling E, having shoulders and solid bearings inpart M, and cross-bolt holder V, substantially as and for the purposeset forth.

JAS. M. DUSENBERRY.

Witnesses: SAML. J. WALLACE, E. COLLINS.

